cycbot | 4cb6622956e3e23d3600067587321b04e70db953deefe149c13086dcbcf65ad9

General

Target

JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
Size

177KB
MD5

9583b2fb623b31dd5d831f28272c5416
SHA1

3294717ca8af01e7e020329a7144f41de0f639bb
SHA256

4cb6622956e3e23d3600067587321b04e70db953deefe149c13086dcbcf65ad9
SHA512

0979e34966f48d544d3f6944d00a8025802f7d6402a9cf8560f1d7a7e6525f76f79f578d2594925e64f51c02cfe174cb06cbc6a4201f473eb33717148744b909
SSDEEP

3072:L4oo5UzOP+xy70j3MEq1RCl88aov0dZOaAn1Pv5vNpQw+:Y5T0jcEq1RCm8a9TZAn1H5vNpQ/

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/1760-5-0x0000000000400000-0x000000000043F000-memory.dmp	family_cycbot
behavioral1/memory/1548-13-0x0000000000400000-0x000000000043F000-memory.dmp	family_cycbot
behavioral1/memory/1548-82-0x0000000000400000-0x000000000043F000-memory.dmp	family_cycbot
behavioral1/memory/768-84-0x0000000000400000-0x000000000043F000-memory.dmp	family_cycbot
behavioral1/memory/1548-193-0x0000000000400000-0x000000000043F000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1548-2-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/1760-5-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/1548-13-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/1548-82-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/768-84-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/1548-193-0x0000000000400000-0x000000000043F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 1760	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	31
PID 1548 wrote to memory of 1760	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	31
PID 1548 wrote to memory of 1760	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	31
PID 1548 wrote to memory of 1760	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	31
PID 1548 wrote to memory of 768	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	33
PID 1548 wrote to memory of 768	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	33
PID 1548 wrote to memory of 768	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	33
PID 1548 wrote to memory of 768	1548	JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1760
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9583b2fb623b31dd5d831f28272c5416.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\7376.8BB

Filesize
600B

MD5
4e385605e57298b7709d58e42082e492

SHA1
51c0af502e9a75fc6cda183c2bbf1cc9ed663e9b

SHA256
e0d72837c24bf21a58c6e797683136df9d020c9cf48171e8978e14d609bdb93e

SHA512
694be7e81d5f67d14d29245b5e38af81cf09a0f720c7e1fb42fd75a0b09345e67aba9f33a9329581dc275d25f2cb1007f43dec4ef3707c07316052ffe32acabe

Download Submit
C:\Users\Admin\AppData\Roaming\7376.8BB

Filesize
1KB

MD5
743b1421da6f4dac615023252fc88d85

SHA1
f81694f2d432f62a187c135b0f7ed224b0c684fd

SHA256
d0f9d9a257774af966352dbd3576a033965c36b2e68f83c2cfe631d21d8bfbd1

SHA512
fd94a17b1777e1898096f430b44c08eeacae63e5bfcee751a4a7eb27dbf61e1b3e69f309489e89809b800fff21686ba1df2d68dd015646390d8055423841b3ad

Download Submit
memory/768-84-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1548-1-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1548-2-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1548-13-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1548-82-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1548-193-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1760-5-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads